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6 Azur phono pre-amplifier
There is no power
Ensure the AC power cord is connected securely.
Ensure the plug is fully inserted and is switched on.
There is no sound
Make sure the unit is plugged in.
Check that your turntable is properly connected.
Check that your speakers are properly connected.
Check all connections are secure and correct amplifier input is selected.
Ensure correct cartridge type has been selected (MM or MC).
There is no sound on one channel
Check that your speakers are properly connected.
Check all connections are secure.
There is a loud buzz or hum
Check turntable or tone arm for ground and connection
lead fault.
Ensure no connections are loose or defective.
Ensure that your turntable is not too close to the amplifier.
Volume is too loud/quiet
Check cartridge type matches input type. If a MC cartridge
is connected through the MM inputs, volume will be very
quiet (and vica versa). Note that it is possible to obtain
high level MC cartridges which are designed for an MM
input.
TROUBLESHOOTING
540P 640P 640P
(MM) (MC)
Max power consumption 5W 5W 5W
Gain @ 1kHz
39dB 39dB 55dB
Nominal output
300mV 300mV 300mV
Sensitivity for
3.35mV 3.35mV 0.5mV
nominal output
THD 20Hz-20kHz
<0.009% <0.005% <0.002%
RIAA curve accuracy
<+/-0.65dB <+/-0.3dB <+/-0.3dB
25hz-20kHz 20Hz-50kHz 20Hz-50kHz
(subsonic filter off)
Signal to noise ratio
>85dB >86dB >72dB
using Audio Precision RIAA-1
with grounded inputs
Crosstalk @ 20kHz
>76dB >83dB >69dB
Dimensions (HxWxD)
mm
46 x 215 x 133 46 x 215 x 133 46 x 215 x 133
inches
1.8 x 8.5 x 5.2 1.8 x 8.5 x 5.2 1.8 x 8.5 x 5.2
Weight
kg
0.8 0.9 0.9
lbs
1.8 2 2
SPECIFICATIONS